*[[c't 512 KB internal RAM expansion]] (DIY) (c't magazine)
*[[Dk'tronics memory expansion|Dk'tronics]] 64-512 KB and compatibles ([[Dobbertin Memory Expansion|Dobbertin]], [[Inicron RAM-Box|Inicron]], [[SYMBiFACE II|SYMBiFACE II]], [[RAM BOX]])
*[[FlashGordon]]
*[[MegaFlash]]
*[[RAM7 2MB memory expansion|RAM7's RAM expansion]] (up to 2 MB)
*[[Inicron ROM-RAM-Box]]
*[[CPC4MB|Jareks 4 MB RAM expansion]] up to 4 MB
*[[X-MEM]]